Replacing spark plugs on a Nissan Note: when to change, which ones to install and how to do it right

Replacing spark plugs with Nissan Note - a procedure that many owners put off until the last minute, until the engine starts to “trouble” or catches fire Check Engine. Meanwhile, worn spark plugs increase fuel consumption by up to 15%, reduce power and can lead to costly repairs to the ignition coils. In this article, we’ll look at how to determine when it’s time to change spark plugs and which models are suitable for engines. HR15DE And HR16DE, and how to replace it yourself - without a pit and special tools.

Feature Nissan Note (especially 2006–2020 models) is that access to spark plugs is difficult due to the compact engine compartment. But with the right approach, the work will take no more than an hour. We have collected proven life hacks from service station experts, candle compatibility tables and step-by-step instructions with photos - so that you do not repeat typical mistakes, such as overtightening the threads or damaging the insulator.

Signs of worn spark plugs on a Nissan Note

Candles in Nissan Note They do not have strict replacement regulations - it all depends on the operating conditions. For example, when driving on gas or short trips in winter, their resource is reduced by 30–40%. The following symptoms indicate that candles require attention:

• 🔥 Engine tripping - especially noticeable at idle or during acceleration. Most often, the spark plug in the 3rd cylinder (on the passenger compartment side) is to blame, as it overheats more.
• ⚡ Misfires - error codes P0300–P0304 on the OBD-II scanner. On Note with HR16DE This may be accompanied by vibration in the steering wheel.
• 🛢️ Increased fuel consumption — if consumption has increased by 1–2 liters for no apparent reason, check the spark plug gap (should be 0.8–1.1 mm).
• 🚗 Bad start — the engine does not “suffice” the first time, especially in cold weather. The culprit is deposits on the electrodes or breakdown of the insulator.

On Nissan Note With a mileage of over 100 thousand km, wear of spark plugs is often disguised as other problems: faulty coils, air leaks or clogged injectors. To avoid wasting money, check before replacing spark plugs compression And condition of high-voltage wires (if your modification has them).

⚠️ Attention: If oil deposits or black gasoline soot are found on the spark plugs, the problem is not with them, but with valve stem seals or fuel system. Replacing spark plugs will not help here!

Which spark plugs are suitable for Nissan Note: original vs analogues

For Nissan Note with engines HR15DE (1.5 l) and HR16DE (1.6 l) the manufacturer recommends original spark plugs Nissan 22401-JD01A (Item number may vary depending on the year of manufacture). However, their price (from 800 rubles per piece) forces us to look for alternatives. The table below shows proven analogues with the same characteristics:

Manufacturer	Article	Gap (mm)	Service life (thousand km)	Notes
NGK	IFR6A11 (or PLFR5A-11 for iridium)	0.8–1.1	60–80	The best choice in terms of price/quality ratio. Iridium ones last longer, but are more expensive.
Denso	FK16HR11 (or IK16 - iridium)	0.8	50–70	Works more gently with ignition coils than NGK.
Bosch	FR7DPX	1.0	40–60	A budget option, but more often they require replacement.
Brisk	DR15YC-1	0.9	50–70	Good for gas, but hard to find in stores.

For Nissan Note with HBO it is better to choose candles with platinum or iridium plated — they maintain a gap longer and are resistant to high temperatures. For example, NGK PLFR5A-11 or Denso IK16. But cheap spark plugs with copper electrodes (for example, Beru 14FR-7DU) on gas they fail after 20–30 thousand km.

If you do not buy candles from an official dealer, be sure to check their authenticity. Fakes often have:

• 🔍 Uneven carvings or burrs on metal.
• 📦 Fuzzy markings or lack of hologram (for NGK And Denso).
• 🔥 Too light weight (the original weighs ~45–50 grams).

Replacement tools: what you need

To replace spark plugs Nissan Note You don't need expensive tools, but you can't do without some accessories. Here's the full list:

• 🔧 Candle key 16 mm with rubber bushing (for example, Hazet 4762-1 or Jonnesway T10306A). A regular socket wrench will not work - it will not hold the spark plug when unscrewing.
• 🔩 Extension cord for the key (20–30 cm) and ratchet handle.
• 🧲 Magnetic "fishing rod" or tweezers - to remove the candle from the well (on HR16DE the wells are deep!).
• 🔧 Torque wrench (optional, but desirable) - so as not to overtighten the spark plugs (tightening torque 20–25 Nm).
• 🧴 Dielectric grease (For example, Permatex 22058) - for processing coil tips.
• 🧹 Compressor or can of compressed air - to blow dust out of wells before work.

If you have Nissan Note with engine HR16DE, prepare additionally flat screwdriver — it will be needed to carefully pry up the coil clamps. On HR15DE the coils are attached with bolts, so you will need 10 mm head.

⚠️ Attention: Never use WD-40 or other penetrating lubricants on spark plug threads! They can get on the electrodes and cause misfires. If the spark plug is stuck, it is better to use a special fluid for threaded connections (for example, Liqui Moly MoS2-Spray).

Make sure the engine is cool (working on a hot engine is dangerous!)

Disconnect the negative terminal of the battery

Clear the area around the spark plug wells of debris

Prepare new candles and tools

Take a photo of the location of high-voltage wires (if any) -->

Step-by-step instructions: how to change spark plugs on a Nissan Note

The process of replacing spark plugs Nissan Note differs depending on engine type. Below are universal instructions taking into account the nuances for HR15DE And HR16DE.

Step 1: Removing the ignition coils

On HR15DE the coils are fastened with bolts, and on HR16DE - latches. To remove them:

1. Disconnect the power connector from the coil (press the latch and pull up).
2. For HR15DE: Unscrew the mounting bolt with a 10 mm socket.
3. For HR16DE: use a screwdriver to pry up the plastic latch and pull the coil up.
4. Carefully remove the coil, rocking it from side to side (do not pull sharply - you may damage the wire!).

Step 2: Unscrewing old spark plugs

This is the most critical stage. Follow the rules:

• 🔧 Insert the spark plug key into the well and carefully bait it onto a candle. If the key slips, use a rubber bushing or a piece of plastic tubing.
• 🔩 Unscrew the candle counterclockwise smooth movements. If it does not give in, do not apply force - it is better to treat the thread with a special liquid and wait 10-15 minutes.
• 🧲 Take out the candle using a magnetic fishing rod or tweezers. If she fell into a well, use vacuum cleaner or sticky tapeto remove it.

Pay attention to the condition of the unscrewed spark plug:

• 🔥 Normal Wear: light brown soot, gap within 0.8–1.1 mm.
• ⚠️ Thread oil - a sign of problems with valve stem seals.
• ⚡ Melted electrodes - indicates detonation or incorrect ignition timing.

Step 3: Installing New Spark Plugs

Before installation, check the gap on the new spark plugs with a feeler gauge (should be 0.8–1.1 mm). If the gap is larger, carefully bend the side electrode.

Next:

1. Insert the candle into the key and lower it into the well without distortions.
2. Twist the candle by hand until it stops, then tighten it with a torque wrench 20–25 Nm (or 1/4 turn with a regular key).
3. Apply dielectric grease onto the spool tip and place it in place.
4. Connect the power connector (the latch should click!).

Repeat the process for all four candles. On Nissan Note with HR16DE It is recommended to start with the 1st cylinder (from the radiator side), since access to the 4th cylinder (from the passenger compartment) is the most difficult.

Typical mistakes when replacing spark plugs on a Nissan Note

Even experienced car owners make mistakes that later result in expensive repairs. Here are the most common:

• 🔧 Using the wrong key - a socket wrench without a rubber bushing scratches the spark plug insulator, which leads to breakdown.
• 🔩 Re-upholstery of candles - on an aluminum block head HR16DE this can cause the thread to break.
• 🧴 Debris entering the cylinder — if you do not blow out the wells before work, sand or dust can cause scuffing on the cylinder walls.
• ⚡ Incorrect clearance - too large a gap leads to misfire, too small - to a weak spark.
• 🔥 Ignoring the state of the coils — if there are cracks or melting on the coil, it must be replaced along with the spark plugs.

Another typical problem is broken spark plug when unscrewing. This happens if the candle is “stuck” to the thread. To avoid this:

1. Before replacing, fill the wells injector cleaning fluid (For example, Wynn’s) and let stand for 30 minutes.
2. Use extension with jointto unscrew the spark plug without distortion.
3. If the candle breaks, don't panic. It can be extracted using extractor (For example, Lisle 65600).

What to do if the spark plug breaks off in the block head?

If the threaded part of the candle breaks off, proceed as follows:

1. Remove the coil and blow out the well with compressed air.

2. Insert the extractor into the thread and carefully unscrew the piece counterclockwise.

3. If the extractor does not help, contact a service center where the spark plug will be drilled out with a special tool.

Never try to knock out a piece of wood with a hammer! This will damage the threads in the block head.

How often to change spark plugs on a Nissan Note: regulations and reality

Official regulations Nissan requires replacement of spark plugs every 60,000 km for ordinary and 100,000 km for iridium. However, in Russian conditions these periods are reduced:

• 🛢️ Riding on gas — spark plugs wear out 30–40% faster due to higher combustion temperatures.
• ❄️ Short trips in winter — the engine does not warm up completely, which leads to carbon deposits on the electrodes.
• 🏙️ Driving in traffic jams — frequent stops and starts increase the load on the spark plugs.
• 🛢️ Low quality fuel — additives in gasoline form a deposit on the spark plugs, reducing their service life.

Practice shows that Nissan Note with HR15DE ordinary candles serve 30–40 thousand km, and iridium - 60–80 thousand km. To extend their life:

• 🔧 Check regularly (every 10 thousand km) gap and clean the spark plugs from carbon deposits.
• 🛢️ Refuel at proven gas stations (for example, Lukoil, Gazpromneft).
• 🔥 Use fuel system cleaning additives (For example, Liqui Moly Ventil Sauber) once every 20 thousand km.

If you drive on gas, reduce the spark plug replacement interval to 20–25 thousand km for ordinary and 40–50 thousand km for iridium. This will prevent breakdown of ignition coils, which is on Nissan Note happens when driving over 100 thousand km.

FAQ: Frequently asked questions about replacing spark plugs on a Nissan Note

Is it possible to replace spark plugs on a Nissan Note without removing the throttle body?

Yes, on most modifications Nissan Note (except for restyled E12 with HR16DE) spark plugs can be changed without dismantling the throttle. However, access to the 4th cylinder is difficult - you will need extension with joint and patience. If your hands are large, it is better to remove the throttle assembly (4 bolts of 10 mm).

Which spark plugs are better for Nissan Note on gas: iridium or platinum?

For Nissan Note with HBO are optimal iridium spark plugs (For example, NGK IFR6A11 or Denso IK16), since they:

• Withstands higher temperatures (up to 1000°C versus 800°C for platinum).
• They have a thinner central electrode, which improves sparking.
• They last longer (up to 80 thousand km versus 50 thousand km for platinum ones).

Platinum candles (eg Bosch FR7DPX Platinum) are cheaper, but less resistant to erosion on gas.

What happens if you don't change spark plugs on time?

Ignoring replacement of spark plugs Nissan Note leads to:

• 🔥 Damage to ignition coils (the cost of one is from 3,000 rubles).
• 🛢️ Increased fuel consumption by 10–15%.
• 🚗 Loss of power (the engine “does not pull” at high speeds).
• ⚡ Detonation, which destroys pistons and rings.

Critical wear of spark plugs can even lead to breakdown of high-voltage wires or damage to the ECU.

Do I need to lubricate the spark plug threads during installation?

No, lubricate the spark plug threads Nissan Note not recommended. This may lead to:

• Tightening when tightening (the tightening torque is designed for “dry” threads).
• Grease gets on the electrodes, which will cause misfires.

The exception is if the candle got stuck and it has to be unscrewed with force. In this case, you can apply copper paste (For example, Liqui Moly Kupfer-Paste) on thread just a new spark plug before installation.

Is it possible to use candles with a different heat rating?

No, on Nissan Note with engines HR15DE/HR16DE candles are allowed only with heat number 6 (For example, NGK IFR6A11). Using candles with a different number will lead to:

• 🔥 Overheating (if the number is less than 6) and melting of the electrodes.
• ❄️ Soot formation (if the number is greater than 6) and misfires.

The exception is if you have tuned the engine (increased the compression ratio or installed a turbo). In this case it may be necessary cold candle (For example, NGK IFR7A11).